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drivers/intel/dptf: Add multiple fan support under dptf

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Add multiple fan support for dptf policies

BUG=b:235254828
BRANCH=None
TEST=Built and tested on Redrix system for two fans

Change-Id: I96ead90e3b805bd20de03e4bef4fa4b9fbaaaedd
Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65611
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Sumeet Pawnikar
2022-06-08 17:43:36 +05:30
committed by Martin L Roth
parent e95da5fdc0
commit 672bd9bee5
9 changed files with 207 additions and 47 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
src/include/acpi/acpigen_dptf.h
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@@ -14,12 +14,15 @@
#define DPTF_DEVICE_PATH "\\_SB.DPTF"
#define TCPU_SCOPE "\\_SB.PCI0"
#define DPTF_MAX_FAN_PARTICIPANTS 2
/* List of available participants (i.e., they can participate in policies) */
enum dptf_participant {
DPTF_NONE,
DPTF_CPU,
DPTF_CHARGER,
DPTF_FAN,
DPTF_FAN_2,
DPTF_TEMP_SENSOR_0,
DPTF_TEMP_SENSOR_1,
DPTF_TEMP_SENSOR_2,
@@ -52,6 +55,8 @@ enum {
/* Active Policy */
struct dptf_active_policy {
/* The device that can be throttled */
enum dptf_participant source;
/* Device capable of being affected by the fan */
enum dptf_participant target;
/* Source's contribution to the Target's cooling capability as a percentage */
@@ -115,6 +120,18 @@ struct dptf_fan_perf {
uint16_t power;
};
/* Different levels of fan activity, chosen by active policies */
struct dptf_multifan_perf {
/* Fan percentage level */
uint8_t percent;
/* Fan speed, in RPM */
uint16_t speed;
/* Noise level, in 0.1 dBs */
uint16_t noise_level;
/* Power in mA */
uint16_t power;
};
/* Running Average Power Limits (RAPL) */
struct dptf_power_limit_config {
/* Minimum level of power limit, in mW */
@@ -151,7 +168,8 @@ void dptf_write_enabled_policies(const struct dptf_active_policy *active_policie
* temperature thresholds are met (_AC0 - _AC9), the fan is driven to corresponding percentage
* of full speed.
*/
void dptf_write_active_policies(const struct dptf_active_policy *policies, int max_count);
void dptf_write_active_policies(const struct dptf_active_policy *policies, int max_count,
bool dptf_multifan_support);
/*
* This function uses the definition of the passive policies to write out _PSV Methods on all
@@ -183,7 +201,15 @@ void dptf_write_charger_perf(const struct dptf_charger_perf *perf, int max_count
* 4) The corresponding active cooling trip point (from _ART) (typically left as
* DPTF_FIELD_UNUSED).
*/
void dptf_write_fan_perf(const struct dptf_fan_perf *perf, int max_count);
void dptf_write_fan_perf(const struct dptf_fan_perf *perf, int max_count,
enum dptf_participant participant);
void dptf_write_multifan_perf(
const struct dptf_multifan_perf (*states)[DPTF_MAX_FAN_PERF_STATES],
int max_count, enum dptf_participant participant, int fan_num);
int dptf_write_fan_perf_fps(uint8_t percent, uint16_t power, uint16_t speed,
uint16_t noise_level);
/*
* This function writes out a PPCC table, which indicates power ranges that different Intel